RO
SR EN 60420:2001
High-voltage alternating current switch-fuse combinations
This standard applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches including switch-disconnectors and current-limiting fuses and thus able to interrupt: -any load current up to the rated breaking current of the switch; -any over-current up to the rated short-circuit breaking current of the combination by which automatic interruption is initiated. This standard applies to combinations designed with rated voltages above 1 kV and below 52 kV for use on three-phase alternating current systems of either 50 Hz or 60 Hz.
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Status :
Withdrawn
Approval date : 12/5/2001
Publish date : 12/6/2001
Withdrawal date : 10/1/2005
Number of pages : 0
ICS : 29.130.10 High voltage switcgear and controlgear
Technical Committee : 8 - High-voltage switchgear and controlgear and testing techniques, instrument transformers
- Normative reference SR EN 60129+A1:1996
- Normative reference SR CEI 60787:1993
- Normative reference SR CEI 60050(441):1997
- Replaced by SR EN 62271-105:2004